Information about the connection of equipments in one of the channels this card And the first channel relationship with another channel .

for example The
third channel is a 232 card was faulty connection that it was not the
first channel when the first channel we did it for other equipment
connections third channel problem channel fault channel third was
resolved

FUM 232 can handle up to 14 RTD's or 26 TC's. For RTD's connection 4 pins (two channels - each) are required (standard 4 wire RTD connection), for TC only 2 pins are required (one channel - each). For TC's handling FUM232 needs an external reference temperature measurement for "cold junction compensation", this measurement is supposed to be RTD and it has to be connected to the two first channels of the FUM232 Module (channel: 1&2 as 4 wire RTD).